Diodes Incorporated SDM05A30CP3-7

Overview

SDM05A30CP3 from Diodes Incorporated is a 30 V, 0.5 A Schottky barrier diode in a Chip Scale Package (X3-WLB0603-2), optimized for low forward voltage (0.71 V max at 500 mA) and ultra-low leakage (9 µA max at 30 V, 25°C). It serves as a blocking or reverse-polarity protection diode in space-constrained portable power rails, delivering soft fast switching and 4.8 ns reverse recovery time.

For engineers reviewing the SDM05A30CP3 datasheet, SDM05A30CP3 pinout, SDM05A30CP3 application, or SDM05A30CP3 equivalent, key selection criteria include its 0.18 mm² footprint, 200 °C/W junction-to-ambient thermal resistance, 600 mW total power dissipation, and NiAu bump terminals compatible with standard reflow profiles.

Technical Context

This Schottky diode uses a planar silicon structure with metal–semiconductor junction to achieve low VF and fast tRR without minority-carrier storage delay. Its X3-WLB0603-2 package features bare-silicon side walls and a 0.28 mm profile, requiring controlled solder mask definition to avoid shorts.

Electrical behavior is characterized by strong temperature dependence: VF rises only modestly with current (0.31 V at 10 mA → 0.71 V at 500 mA), while IR increases exponentially-reaching 0.7 mA at 30 V and +125°C-making thermal management critical in high-ambient applications.

Key Specifications

Pinout & Package

Package: X3-WLB0603-2 - Chip-scale wafer-level ball grid array with 0.28 mm profile, 0.18 mm² board area, and NiAu solderable bumps. Polarity indicated by cathode dot on top surface.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schottky diode applications.

Compared with RB050M-30TR and NSR0530HT1G, SDM05A30CP3 delivers the smallest footprint and lowest leakage among 30 V/0.5 A Schottkys, making it optimal for space- and battery-life–critical portable designs where thermal resistance can be managed via layout.

Availability

SDM05A30CP3 is available at Aetrix Electronics and suitable for USB-C power delivery modules, wireless earbud charging systems, and BLE beacon battery backup circuits requiring stable component supply across multi-year production cycles.

Supply support for SDM05A30CP3 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the U.S.

The SDM05A30CP3 belongs to Diodes' low-leakage Schottky portfolio targeting portable and wearable power management, emphasizing miniaturization, efficiency, and RoHS/Green compliance for consumer electronics.

FAQ

What is the maximum operating temperature for SDM05A30CP3?

The SDM05A30CP3 has an operating junction temperature range of –55°C to +150°C. At ambient temperatures above +85°C, forward current must be derated per Figure 4 in DS41115 Rev. 2–2; at +125°C ambient, IO drops to approximately 0.25 A due to thermal resistance limitations.

Is SDM05A30CP3 suitable for automotive applications?

No-SDM05A30CP3 is not AEC-Q200 qualified and lacks automotive-grade screening or extended temperature validation. Its 150°C max TJ rating supports industrial use, but automotive systems require qualified alternatives such as Diodes' APD214 series with full PPAP documentation.

How does the X3-WLB0603-2 package affect PCB assembly?

The X3-WLB0603-2 package requires precise stencil aperture control (0.15 mm thickness, 0.22 × 0.26 mm opening) and nitrogen reflow to prevent solder wicking onto electrically active side walls. Diodes recommends using their suggested pad layout (G=0.206 mm, X=0.194 mm) to ensure coplanarity and void-free joints.

Can SDM05A30CP3 replace a standard silicon diode in a 5 V rail?

Yes-its 30 V VRRM and 0.71 V VF make it a direct upgrade over 1N4148 or 1N4001 in low-voltage, low-current rails. However, note its 0.5 A IO rating is lower than 1N4001's 1 A, so verify peak surge currents (IFSM = 4.8 A) do not exceed design limits during hot-plug events.